Jules leurquin



JULES LEURQUIN, 0F UCCLE-STALLE, BRUSSELS, BELGIUM.

REPRODUCIN'G PICTURAL, ARTISTIC, AN D.GRAPHIC WORKS.

No Drawing.

To all whom it may concern Be it known that I, JULEs LEURQUIN, a subject of the King of Belgium, and resident of Uccle-Stalle, Brussels, Belgium, 214 Avenue Kersbeek, have invented certain new and useful Improvements in Reproducing Pictu ral, Artistic, and Graphic Works; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to Which it appertains to make and use the same.

The present invention relates to a new process for reproducing, by printing with oil-colors, pictural, artistic and graphic works of all'kinds and specially those belonging to art, sciences, teaching, social organization, politics, agriculture, industry and trade, more particularly: old or modern pictures and decorations, painted in oilcolors or with any other substances, aquarelles, pastel, charcoal, or other drawings,

prints, images, posting-bills, geographical maps, ornamenting or tuition boards for schools, architects plans, and printed matters of all kinds intended to a great diffusion, upon all products of nature or industry having surfaces adapted to be coated or impregnated with agglutinating materials and, more especially, upon vegetable or animal tissues, skins and leathers, upon fabrics made of flax, hemp, cotton, jute, wool, hairs or feathers, natural or artificial silk; upon blades of metal, wood, paper, ivory and natural or artificial nacre.

The process comprises the method of preparing the surfaces intended to be printed and to be so converted intoreproductions of the original models. v

This method of preparation comprises the following operations:

The fabrics, cloth, or substance in the form of blades intended to be printed are cleaned; the knots, big threads and other defects of the fabric are eliminated. The surfaces on which the works will be reproduced are then smoothed by means of pumice-stone, with or without addition of water, and even in some cases they are rubbed with emery-stone or sand-paper and in the dry state. They must then be coated with a protective gluing material or sizing coat.

After the preparatory operations, the

Specification of Letters Patent.

Patented May 20, 1919.

Application filed October 28, 1916. Serial No. 128,229.

surfaces are provided with a first layer of the special coating intended to render them capable of being printed.

This coating is prepared by means of white linseed-oil thickened by heating it with or without litharge, until it has acquired a consistency similar to'that ofthe pear syrup. White colors in powder are mixed with that oil; those colors must be neutral in order to avoid blackening of the surfaces. This mixture of colors with thick oil is diluted, before being applied, by means of naphtha, benzene or another volatile material.

' The coating is composed in the following manner;

A.First mixture comprising:

7 parts of oma-white, first quality.

1 part of baryta-white.

21parts of zinc-white, first quality.

2% parts of whitened linseed-oil.

'B.Second mixture:

5 parts of oma-white.

5 parts of zinc-white, first quality.

' 3 parts of whitened linseed-oil. These mixtures are malaxated.

- C.-First coating:

5 partsof the first mixture.

2 parts of thick oil.

1 .part of volatile essence.

part of drier or siccative. D.Secondcoating: 6 parts of the second mixture.-

3 parts of thickoil.

2 parts of volatile essence.

part of drier or siccative. For the substancesused as support which must be covered with two layers, the first layer will be of the first coating (C) and the second layer of the second coating (D) for those substances which must be covered with three layers, two layers will be of the first coating (C) and one layer of the second coating (D); these layers are applied V by means of a scraper.

E.Third coating.

2 parts of the second coating (D) 3 parts of volatile essence.

This last mentioned coating is used for the last layer and it is applied by means of a brush.

The proportions of the materials in the various mixtures and coatings may be varied within certain limits, specially according to the thickness of the substances to be coated.

A first layer of coating is applied on the fabric, and the latter, which is then technically called coated fabric or coated surface, is afterward dried in daylight and in a-current of air in order to facilitate the evaporation of the volatile materials and the drying without necessity of using high temperatures; the daylight whitens the surfaces. After several days drying and whitening, the fabric is carefully cleaned by means of a knife, a grater, pumice-stone, emery, granite or in any other suitable inanner.

A second and, eventually, several other layers are then applied each of which is dried and whitened in the manner hereinbefore described.

A subsequent layer is then applied driedand whitened. \Vhen dried, the fabric is pumicated or smoothed by means of pumice-- stone, sandstone, granite, emery, artificial pumice or any other suitable material. The surface acquires then an appearance similar to that of paper and very suitable for printing. According to the quality of the product to be made, the application of a layer followed by a pumicing operation may be repeated several times. It is possible to obtain in this way a final surface possessing a receptivity quite similar to that of paper, as far as printing is concerned, but having besides the strength, suppleness and flexibility of the fabric, a great suppleness remaining in the fabric owing to the use of thick or agglutinated oil which is the only agglomerating material which remains in the dried coating.

In some cases, it is advantageous to give to the surface intended for printing a dull but whiter appearance, which is performed by applying an additional layer, the purpose of which is also to render the impression more adherent. This last layer has the same composition as the coating previously used, but with a far greater proportion of Volatile liquid (naphtha, benzene), so as to have a product more diluted. This last layer is not pumicated at all.

WVhen the substance prepared is intended to be used for the reproduction of certain artistical works, a quantity of the material known as amber-oil or huile dam'bre may be mixed with the color of the last layer, in order to vary the tint of the colors. Said addition must be made in a proportion determined according to the effect desired.

lVhen artistic works are reproduced, it is advantageous to make an impression with colors without relief, followed by an appli cation of colors in relief this last mentioned application may be performed either by a printing process or by hand.

By these means, it is possible toreproduce integrally the original works with all their characteristics: impastations, tints, shadows, clear-obscure, light, perspective, without any exception, including the distinctive signs denoting the origin thereof.-

What I claim is: p

1. A process for reproducing pictorial, artistic and graphic works, consisting in preparing a mixture of colors, thickened linseedoil and a volatile liquid, applying said mixture in several layers on a supporting substance, drying and pumicating each layer and printing on the coating formed by said layers.

2-. A process for reproducing pictorial artistic and graphic works, consisting in coating a supporting substance with a mixture of colors, thickened linseed oil and a volatile liquid and applying to said substance a subsequent layer containing a mixture of colors, thickened linseed oil,'a volatile liquid and amber oil, nd printing on the coating formed by said layers.-

In testimony whereof I afliX my signature in presence of two witnesses.

, J ULES LEURQUIN,

Witnesses:

CHARLES MERoHIs, CHARLES RoY NASWITH.

idiom of this patent my be obtained for in cent: each, bi adai'esisliifl thi Obninlisiont oi Pitinfi,

Washington, 1L0." 

